San Francisco studio Natoma Architects completed a family residence that consists of intersecting volumes, with connections between its planes of concrete and glass designed to look as minimal as possible “like an iPhone”.

Perched on a hilltop in Atherton, California, the residence also features a pool house, guest house and ample outdoor space.

Jim Olson, co-founder of Seattle architecture studio Olson Kundig, made a series of additions to a bunkhouse he designed and built aged 18, as a first-year architecture student.

The project has involved numerous expansions over the decades to a 200-square-foot (19-square-metre) bunkhouse built in 1959, which is located on a forested site in Longbranch, a village on a peninsula in the Puget Sound.